The threat of a devastating cyber attack on the U.S. electrical grid is increasing due to the Obama administration’s politically correct policies that spend vast sums on green and smart grid technologies while failing to secure power grids from cyber attack.

A report by the Manhattan Institute, a New York think tank, warns that the push to integrate wind and solar electrical power into the $6 trillion electric utility system has created new vulnerabilities that other nations could exploit in a future cyber war.

“Electric grids have always been vulnerable to natural hazards and malicious physical attacks,” writes Mark Mills, a physicist and engineer who authored the Manhattan Institute report. “Now the U.S. faces a new risk—cyber attacks—that could threaten public safety and greatly disrupt daily life.”

The U.S. electrical power network is not made up of a single grid, but a complex web of eight regional “supergrids” linked to thousands of local grids. Under a drive for improved efficiency, government policymakers and regulators in recent years have spent tens of billions of dollars on so-called “smart grid” technology. But the efficiency drive has not been matched with new technology that will secure grids against cyber attacks.

Utility owners also have resisted improving cyber security over concerns doing so would increase operating costs and force unpopular rate hikes. Yet the failure to take steps now to deal with future threats could prove catastrophic.

The threat, according to the report, is not the current state of security but the future use of greener and smarter electric grids, interconnected and linked to the Internet. “These greener, smarter grids will involve a vast expansion of the Internet of Things that greatly increases the cyber attack surface available to malicious hackers and hostile nation-state entities,” the report warns, adding that cyber attacks overall have risen 60 percent annually over the past six years and increasingly include the targeting of electric utilities.

“Greater grid cyber security in the future means that policymakers must rethink the deployment of green and smart grids until there are assurances that security technologies have caught up,” the report recommends.

Part of the problem for grid security is that power networks are controlled by the private sector utilities. Government can and must provide intelligence and warning of cyber threats. But grid security is the responsibility of industry and there is an urgent need for the private sector to do more to defend the country from a future devastating blackout.

Further, the government and electric companies appear to be playing down the danger, claiming cyber attacks are less likely than squirrels eating electrical cables, or tree limbs shorting out wires.

This attitude was reflected in a controversial Department of Homeland Security Report produced in January that concluded the threat of a damaging or disruptive cyber attack on the electric infrastructure was low. The study was an embarrassing reminder that the federal government is ill-prepared for future dangers. A month before the DHS report, Russian hackers took down portions of Ukraine’s power grid in what has been called the first known cyber attack on an electricity infrastructure.

The problem of grid security has been made worse by the past seven years of administration policies that subordinated building up security against cyber attacks to integrating environmental technologies. The liberal worldview mistakenly has placed climate change as a greater national security threat than future cyber attacks from nation states.

According to the Manhattan report, wind and solar power will be unable to meet the country’s 24/7 energy demands for the foreseeable future. Yet programs to develop these energy sources received over 75 percent of all new generating capacity, with some $150 billion invested by the federal government on green and smart grid programs. By contrast, the Energy Department spent $150 million on cyber security research and development.